Glass Penny Head Hollow Stopper - Borosilicate Glass for 34/45 Outer Joint, Closed Bottom (5 Pcs)

Glass Penny Head Glass Hollow Stopper for 34/45 Outer Joint, Borosilicate Glass, with Closed Bottom (5 Pcs)

Glass Penny Head Hollow Stopper - Borosilicate Glass for 34/45 Outer Joint, Closed Bottom (5 Pcs)

We have many laboratory supplies in many fields to provide you with multi-faceted labware. Suitable for science and laboratory glassware, used to seal lab glassware such as flasks, separatory funnels, cylinders.

Key Features

• ✅ Hollow glass stopper, pack of 5.
• ✅ Made of Borosilicate Glass, which has low expansion rate, high strength, high hardness, high temperature resistance and resistance to 200 ? temperature difference.
• ✅ High light transmittance, high chemical stability, acid and alkali resistance.
• ✅ Easy to clean and rotate in or out. Grooves in the sides help prevent slippage.
• ✅ Use the hollow glass stoppers to seal lab glassware such as flasks, separatory funnels, cylinders.

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